Quick answers
- Does Vivian M. Mandas accept Medicare assignment?
- Yes. Medicare's clinician data says Vivian M. Mandas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Vivian M. Mandas see?
- In 2024, CMS data shows 155 Original Medicare patients and 511 services for Vivian M. Mandas. This counts Original Medicare only and measures volume, not quality.
- What is Vivian M. Mandas's NPI number?
- 1508620303. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Vivian M. Mandas, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 155 |
|---|---|
| Services billed to Medicare | 511 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)101 services
- Exam of ear using a microscope (92504)66 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)31 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)17 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes34%
- Anxiety30%
- Ischemic heart disease28%
Hospitals where Vivian M. Mandas works
Medicare's Facility Affiliation Data lists Vivian M. Mandas at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Methodist Medical Center of Oak RidgeOak Ridge, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440034
- University Health System, IncKnoxville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440015
Practice locations
Addresses where Vivian M. Mandas is enrolled with Medicare (CMS data updated October 2, 2026).
- 800 Oak Ridge Tpke, Suite C100Oak Ridge, TN 37830 (865) 483‑2288
- 800 Oak Ridge Turnpike, Suite C100Oak Ridge, TN 37830
Group practices
Medicare enrollment lists Vivian M. Mandas as a member of this group (CMS data updated October 2, 2026).
- East Tennessee Ear, Nose and Throat Specialists, PC8 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Oak Ridge
Clinicians with the same Medicare primary specialty in Oak Ridge, TN — not a recommendation.
Other clinicians in East Tennessee Ear, Nose and Throat Specialists, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508620303 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians